LSP-server-example

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package handlers
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import (
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	"encoding/json"
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	"log/slog"
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	"lsp-server/internal/protocol"
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)
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const (
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	TextDocumentSyncKindNone protocol.TextDocumentSyncKind = iota
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	TextDocumentSyncKindFull
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	TextDocumentSyncKindIncremental
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)
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const InitializeMethod = "initialize"
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type Initialize struct {
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}
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func (i Initialize) Call(params json.RawMessage) (any, error) {
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	slog.Info("received initialize method")
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	iParams, err := i.parseParams(params)
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	if err != nil {
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		slog.Error("Error to parse initialized params")
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		return nil, err
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	}
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	slog.Debug("initialized params", slog.Any("params", *iParams))
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	result := protocol.InitializeResult{
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		Capabilities: protocol.ServerCapabilities{
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			TextDocumentSync:   TextDocumentSyncKindFull,
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			HoverProvider:      &protocol.Or_ServerCapabilities_hoverProvider{},
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			CompletionProvider: &protocol.CompletionOptions{},
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		},
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	}
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	return result, nil
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}
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func (i Initialize) parseParams(params json.RawMessage) (*protocol.InitializedParams, error) {
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	var initializeParams protocol.InitializedParams
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	if err := json.Unmarshal(params, &initializeParams); err != nil {
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		return nil, err
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	}
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	return &initializeParams, nil
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}
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